Hey Guys,
I've got a 2008 aluminimum 24" imac. 3.06GHz, 4GB, 250GB. The screen started to just turn off around 2 weeks ago. Sometimes the machine would power on and work for around 1-2 hours, but sometimes only around 15 minutes.
The screen just goes black. No funny flickering, no odd pixels etc. Just off.
The superdrive is still reading etc, if I put in a disk it spins and reads, I can also hear the hard drive reading etc.
I opened the imac and checked the graphics card. Its the 512MB Nvidia 880GS.
I sent the graphics card to a company to test it and it worked directly in one of their machines for an entire day.
I've replaced the ram and the lcd screen too.
When I power up the machine I check the little diagnostic leds and it shows
LED 1 - ON
LED 2 - ON
LED 3 - ON
LED 4 - OFF
but the screen is just black.
Any ideas - I'm thinking it may be the logicboard but surely the dvd drive and hard drive wouldnt power on?
I've got a 2008 aluminimum 24" imac. 3.06GHz, 4GB, 250GB. The screen started to just turn off around 2 weeks ago. Sometimes the machine would power on and work for around 1-2 hours, but sometimes only around 15 minutes.
The screen just goes black. No funny flickering, no odd pixels etc. Just off.
The superdrive is still reading etc, if I put in a disk it spins and reads, I can also hear the hard drive reading etc.
I opened the imac and checked the graphics card. Its the 512MB Nvidia 880GS.
I sent the graphics card to a company to test it and it worked directly in one of their machines for an entire day.
I've replaced the ram and the lcd screen too.
When I power up the machine I check the little diagnostic leds and it shows
LED 1 - ON
LED 2 - ON
LED 3 - ON
LED 4 - OFF
but the screen is just black.
Any ideas - I'm thinking it may be the logicboard but surely the dvd drive and hard drive wouldnt power on?